Don't Touch That 'dile - S3-E1
Revealing mistake: As Brock starts heading to New Bark Town, he passes through Pikachu. (00:06:10)
Don't Touch That 'dile - S3-E1
Revealing mistake: When Officer Jenny is describing the situation that occurred at Professor Elm's laboratory, the balloon held at the centre of the arch is translucent with the laboratory being able to be seen through it. (00:08:36)
Don't Touch That 'dile - S3-E1
Revealing mistake: When Officer Jenny takes Totodile from Ash's hands, her right hand clips through it and Ash's left hand. (00:17:50)
Answer: He is a good guy but just found himself in a bad situation when he worked for Lysander. He didn't want him to harm Ash and his Pokémon when he was trying to get the special bond between Ash and his Greninja to work. He does leave Lysander and go back to being a good person.